Electronic government (e-government) initiatives are in their early stages in many developing countries and faced with various issues pertaining to their implementation of e-government services. Like many other developing countries, the e-government initiative in the state of Qatar has faced a number of challenges since its inception in 2000. This study utilises the Unified Theory of Acceptance and Use of technology (UTAUT) model to explore the adoption and diffusion of e-government services in the state of Qatar. 1179 citizens were surveyed using the UTAUT model. The empirical data reveal that performance expectancy, effort expectancy, and social influences determine citizens’ behavioural intention. Additionally, facilitating conditions and behavioural intention determine citizens’ use of e-government services. Implications for practice and research are discussed.